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Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Table - Accrued Environmental Liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
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Environmental Exit Cost [Line Items] |  |
Current | $ 53 | $ 54
Non-current | 236 | 228
Total environmental liabilities | $ 289 | $ 282

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